How to calculate the current carrying capacity comparison table for three-phase cables?

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Do you have a comparison table for the current carrying capacity of three-phase cables? The comparison table of three-phase cable current carrying capacity is as follows: https://iknow-pic.cdn.bcebos.com/b3fb43166d224f4a9a6d34c504f7922d174 Calculation method for three-phase cable current carrying capacity: Or split

(1) According to the formula I=P ÷ (U × 1.732 × cos Φ) P-power (W) for three-phase electrical phase line current calculation; U-voltage (380V); Cos Φ - power factor (0.85); I-phase line current (A) input data: motor power P=7.5kw, voltage U=380V; According to the calculation, the phase line current I=13.3A

(2) In a three-phase balanced circuit, the current carrying capacity of a copper wire is generally 5~8A/mm ^ 2.13.3 ÷ 8=1.66mm ^ 2, and the latest specification of the cable is 2.5mm ^ 2. Additional information: Cable current carrying capacity purpose: The cable is used to transmit electrical energy, and the calculation formula for three-phase electrical power is P=1.732Uicos φ. In the formula: P - electrical power, unit kWU - voltage, unit kVA - current, unit Acos φ - natural power factor of the system. As can be seen from the above formula, in order to transmit electrical energy, there must be current flowing through the line, and the larger the current passing through the line, the greater the power factor of the system. The more electrical power is transmitted. Current carrying capacity refers to the amount of current carried by a line conductor. The maximum allowable current carrying capacity for each specification of wire is specified in national regulations. When in use, the maximum load current required by the load must be less than the long-term allowable current carrying capacity of

the wire in air. For example, a 25 square millimeter copper core wire has a long-term allowable current carrying capacity of 105A in air. When your main equipment is running, the operating current can only be less than or equal to 105A, and must not be greater than 105A. There are detailed calculation formulas and operating procedures:

1. Generally speaking, flow rate and differential pressure are in an open and closed relationship, that is, F * F=K * △ P

2. Then K=F × F/△ P=200 * 200/25=1600

3. When the flow rate is 80m3/h: △ P1=F1 * F1/K=80 * 80/1600=4KPa

4. The current output is wide grinding (20mA-4mA) × 4/25+4=6.56mA

5. When the flow rate is 100m3/h: △ P2=F2 * F2/K=100 * 100/1600=6.25KPa

6. The current output is (20mA-4mA) × 6.25/25+4=8mA. Additional information: Differential pressure (pressure) transmitter is a typical self balancing detection instrument that uses the working principle of negative feedback to overcome the influence of adverse factors such as component materials and processing technology. Differential pressure transmitters are used to measure the liquid level, density, and pressure of liquids, gases, and vapors, and then convert them into 4-20mADC current signals for output. JT-3051DP can also communicate with each other through the BRAN controller, CENTUMCS/μ XL, or HART275 controller for setting and monitoring purposes. Among them: Q: volumetric flow rate; α: Flow coefficient ε: flow beam expansion coefficient d: orifice size of throttling element Δ p: differential pressure hood rise p1: fluid density

3. The size of mobile phone flow calculation unit K, which is larger, KB, M, G, MB

Hello, your M is the same as MB, MB is also called M for short, GB i

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